A Software Reliability Engineering Success Story ATT's Definity® PBX

摘要

Over the past five years a number of quality-improvement initiatives have been completed on AT&T's Definity® PBX product-development process. This paper describes the quality-improvement initiatives and the quality-improvement results that were achieved. The new initiatives include incremental development and operational-profile, statistical testing. The quality-improvement results include an increase in customer satisfaction with product quality and a decrease in development and testing costs and intervals.